Superabsorbent Polymer Particles Coated With A Hydrophilic Elastomer And Absorbent Article Comprising Such Particles

a technology of hydrophilic elastomers and absorbent articles, which is applied in the direction of cellulosic plastic layered products, natural mineral layered products, bandages, etc., can solve the problems of reducing the absorbent capacity of gels undetected, affecting the distribution of fluids to relatively dry zones or regions, and the shell is not strong enough to withstand. , to achieve the effect of good liquid transport, good stability and good liquid transpor
US20110319847A1Active Publication Date: 2011-12-29THE PROCTER & GAMBLE COMPANY
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
THE PROCTER & GAMBLE COMPANY
Publication Date
2011-12-29

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Abstract

Superabsorbent polymer particles, coated with a block copolymer comprising at least four blocks being at least two hard blocks, one soft block and one hydrophilic block, wherein a the soft block is sandwiched between the hard blocks.
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Description

CROSS REFERENCE TO RELATED APPLICATION

[0001] This application claims the benefit of U.S. Provisional Application No. 61 / 359,123, filed on Jun. 28, 2010.FIELD OF THE INVENTION

[0002] The invention relates to superabsorbent material, such as superabsorbent polymer particles, comprising a hydrophilic elastomeric water vapor permeable coating. The coating is intended to allow swelling of the coated superabsorbent polymer particles without breakage of the coating, and, at the same time ensure good transport of water based liquids through the coating into the superabsorbent polymer particle.

[0003] The invention also relates to diapers, adult incontinence articles and catamenial devices, such as sanitary napkins, comprising said coated water swellable material.

[0004] The invention further relates to a process of making such a superabsorbent material comprising the hydrophilic elastomeric water vapor permeable coating.BACKGROUND OF THE INVENTION

[0005] An important component of disposable absorben...

Claims

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